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1013203131001 = 1953326480579
BaseRepresentation
bin11101011111001111001…
…11001101101001111001
310120212020212102222021221
432233213213031221321
5113100020000143001
62053243055232041
7133126055341225
oct16574747155171
93525225388257
101013203131001
11360773831706
12144447818621
137471077c9a9
1437079b6b785
151b5509401a1
hexebe79cda79

1013203131001 has 4 divisors (see below), whose sum is σ = 1066529611600. Its totient is φ = 959876650404.

The previous prime is 1013203130983. The next prime is 1013203131019. The reversal of 1013203131001 is 1001313023101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1013203130983) and next prime (1013203131019).

It is a cyclic number.

It is not a de Polignac number, because 1013203131001 - 25 = 1013203130969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013203131041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26663240271 + ... + 26663240308.

It is an arithmetic number, because the mean of its divisors is an integer number (266632402900).

Almost surely, 21013203131001 is an apocalyptic number.

It is an amenable number.

1013203131001 is a deficient number, since it is larger than the sum of its proper divisors (53326480599).

1013203131001 is an equidigital number, since it uses as much as digits as its factorization.

1013203131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53326480598.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1013203131001 its reverse (1001313023101), we get a palindrome (2014516154102).

The spelling of 1013203131001 in words is "one trillion, thirteen billion, two hundred three million, one hundred thirty-one thousand, one".

Divisors: 1 19 53326480579 1013203131001